qemuDomainDeviceDefPostParse: add USB controller model check

To sync with virDomainControllerModelUSB, we add two models
in qemuControllerModelUSB 'qusb1' and 'qusb2', but those
models are not supported in qemu driver. So add check in
device post parse to report errors if 'qusb1' and 'qusb2'
are specified.
Signed-off-by: NChunyan Liu <cyliu@suse.com>

src/qemu/qemu_domain.c

@@ -2484,6 +2484,19 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         ARCH_IS_S390(def->os.arch))
         dev->data.controller->model = VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE;
 
+    /* forbid usb model 'qusb1' and 'qusb2' in this kind of hyperviosr */
+    if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER &&
+        dev->data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_USB &&
+        (dev->data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB1 ||
+         dev->data.controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB2)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                       _("USB controller model type 'qusb1' or 'qusb2' "
+                         "is not supported in %s"),
+                       virDomainVirtTypeToString(def->virtType));
+        goto cleanup;
+    }
+
+
     /* set the default SCSI controller model for S390 arches */
     if (dev->type == VIR_DOMAIN_DEVICE_CONTROLLER &&
         dev->data.controller->type == VIR_DOMAIN_CONTROLLER_TYPE_SCSI &&